In the left corner: the Rokinon (a.k.a ‘Samyang’, in some parts of the world) T-S 3.5/24 ED AS UMC, from Korea. In the right corner: the Nikon PC-E 24/3.5 ED. One weighs in at a hair under $2,000, the other, closer to $850. I have to be honest, the Samyang has only come onto my radar because of the enormous difference in price – I admit curiosity as to what we’re really giving up for the delta. The only real uses for these lenses – other than bragging rights – are to shoot architecture; Putrajaya’s Putra Mosque plays host to us for this testing session.

Technical notes: During this test, I shot both lenses from the same tripod position with the same settings on the barrels – distance, tilt, shift, aperture. Nevertheless, there are still some slight differences, which I think are a combination of sample variation and lack of precision in the focusing scales of both lenses; infinity to 1m are barely five millimeters apart on the barrel – about seven degrees of travel, by my reckoning. Live view was used to match subject sharpness as closely as possible. Testing was done on a D800E body, at base ISO with self timer used at all times, on a locked down solid tripod – a Gitzo 5-series carbon systematic and Arca-Swiss Cube head. Whole-shot sample images were shot using the Nikon; in the A-B comparisons, the Rokinon is always the warmer image.

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